public function testPointerIteration()
{
$this->assertEquals($this->_0, $this->collection->next());
$this->assertEquals($this->_1, $this->collection->next());
$this->assertEquals($this->_2, $this->collection->next());
$this->assertEquals($this->_3, $this->collection->next());
$this->assertEquals(null, $this->collection->next());
$this->assertEquals($this->_3, $this->collection->previous());
$this->assertEquals($this->_2, $this->collection->previous());
$this->assertEquals($this->_1, $this->collection->previous());
$this->assertEquals($this->_0, $this->collection->previous());
$this->assertEquals(null, $this->collection->previous());
$this->collection->setPointer(2);
$this->assertEquals($this->_2, $this->collection->current());
}
public function testIterator()
{
$nodeData = array('alpha', 'alpha/a', 'alpha/a/b', 'alpha/a/b/c');
$nodes = array();
$c = new Collection();
foreach ($nodeData as $path) {
$n = new Node($path);
$nodes[$path] = $n;
$c->addNode($n);
}
$c->rewind();
$this->assertEquals($nodes['alpha'], $c->current());
$this->assertEquals('alpha', $c->key());
$this->assertEquals(true, $c->valid());
$c->next();
$this->assertEquals($nodes['alpha/a'], $c->current());
$this->assertEquals('alpha/a', $c->key());
$this->assertEquals(true, $c->valid());
$c->next();
$this->assertEquals($nodes['alpha/a/b'], $c->current());
$this->assertEquals('alpha/a/b', $c->key());
$this->assertEquals(true, $c->valid());
$c->next();
$this->assertEquals($nodes['alpha/a/b/c'], $c->current());
$this->assertEquals('alpha/a/b/c', $c->key());
$this->assertEquals(true, $c->valid());
$c->next();
$this->assertEquals(false, $c->valid());
$c->rewind();
$this->assertEquals($nodes['alpha'], $c->current());
$this->assertEquals('alpha', $c->key());
$this->assertEquals(true, $c->valid());
}
/**
* Gets the element of the collection at the current iterator position.
*/
public function current()
{
return $this->coll->current();
}
